Best Address Verification Tools - Page 2

How Many Address Verification Tools Products Does G2 Track?

Total Products under this Category: 98

Category Stats (Sep 2026)

  • Average Rating: 4.42/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: AU10TIX (+2.08%) - Among all products in this category, AU10TIX recorded the largest rating increase compared to last month

Last updated: September 05, 2026

How Does G2 Rank Address Verification Tools Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 2,400+ Authentic Reviews
  • 98+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Address Verification Tools

G2 Grid® for Address Verification Tools plotting products by satisfaction and market presence

Highlighted products: PostGrid Address Verification, Smarty, Melissa Global Address Verification, Veriff, Shufti, Sumsub, Lob, and ComplyCube.

Underlying data: [Grid® JSON](https://www.g2.com/categories/address-verification/grids.json?focus%5B%5D=postgrid-address-verification&focus%5B%5D=smarty-smarty&focus%5B%5D=melissa-global-address-verification&focus%5B%5D=veriff&focus%5B%5D=shufti&focus%5B%5D=sumsub&focus%5B%5D=lob&focus%5B%5D=complycube)

DQE One

DQE One is a real-time data quality platform that validates, standardizes, deduplicates, and enriches customer data, including email addresses, phone numbers, and postal addresses. It helps businesses maintain accurate, complete, and unified customer data across CRM systems, marketing platforms, and operational tools. DQE One solves common data quality challenges such as: - Invalid emails and poor deliverability - Incorrect postal addresses and failed deliveries - Wrong phone numbers and unreachable contacts - Duplicate records and fragmented customer data - Inconsistent data formats across systems It ensures that customer data is clean and usable from the moment it enters your systems. Key capabilities include: - Real-time validation of email, phone, and address data - Data standardization and formatting across systems - Duplicate detection and record merging to create a single customer view - Data enrichment to complete and enhance customer information - Global address validation with country-specific rules - API-first architecture for real-time processing and easy integration DQE One detects duplicate customer records and merges them to create a unified customer view. This improves CRM reliability, reporting accuracy, and overall data consistency. Typical use cases include: - CRM data cleansing and deduplication - E-commerce checkout optimization - Lead capture and contact data validation - Customer data integration across multiple systems - Data governance and data quality initiatives DQE One integrates with platforms such as Salesforce, HubSpot, and other CRM, marketing automation, and e-commerce tools. It can be deployed via API or connectors to ensure data quality across all customer touchpoints. DQE One is designed for companies that want to improve data accuracy, reduce operational inefficiencies, eliminate duplicates, and deliver better customer experiences through reliable data.

Average Rating: 4.8/5.0

Total Reviews: 39

How Do G2 Users Rate DQE One?

  • Automation: 9.2/10 (Category avg: 8.8/10)
  • Reporting: 8.3/10 (Category avg: 8.2/10)
  • International Verification: 8.3/10 (Category avg: 8.6/10)
  • Has the product been a good partner in doing business?: 9.9/10 (Category avg: 8.9/10)

Who Is the Company Behind DQE One?

  • Seller: DQE
  • Company Website:
  • Year Founded: 2008
  • HQ Location: Levallois-Perret, Île-de-France
  • Twitter: @dqe_software
    173 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    77 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Information Technology and Services, Computer Software
  • Company Size: 36% Medium, 36% Small

What Do G2 Reviewers Say About DQE One?

AI-generated summary from verified user reviews

Pros
  • Users find DQE One to be very easy and intuitive, making it accessible for all levels of expertise.
  • Users praise the seamless CRM integration of DQE One, enhancing data consistency and improving operational efficiency.
  • Users commend the data accuracy of DQE One, significantly enhancing their data management and operational efficiency.
  • Users appreciate the improved data quality provided by DQE One, enhancing operational performance and team accessibility.
  • Users find DQE One to be an intuitive solution, enhancing data management without needing extensive technical skills.

What Are Recent G2 Reviews of DQE One?

Incognia

Incognia is the innovator of next-generation identity solutions that enable secure and seamless digital experiences. With its persistent device fingerprint solution, Incognia combines best-in-class device recognition signals, location analysis and tamper detection for frictionless user verification and fraud prevention. Incognia’s customizable risk assessment and actionable insights empower companies in food delivery, ride-hailing, marketplace, and financial services to protect their reputation, retention and revenue. For more information, visit Incognia.com.

Average Rating: 4.9/5.0

Total Reviews: 36

How Do G2 Users Rate Incognia?

  • Automation: 9.6/10 (Category avg: 8.8/10)
  • Reporting: 9.2/10 (Category avg: 8.2/10)
  • International Verification: 8.3/10 (Category avg: 8.6/10)
  • Has the product been a good partner in doing business?: 9.9/10 (Category avg: 8.9/10)

Who Is the Company Behind Incognia?

  • Seller: Incognia
  • Company Website:
  • Year Founded: 2020
  • HQ Location: Palo Alto, CA
  • LinkedIn® Page: www.linkedin.com
    251 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Financial Services, Banking
  • Company Size: 61% Large, 31% Medium

What Do G2 Reviewers Say About Incognia?

AI-generated summary from verified user reviews

Pros
  • Users commend the exceptional customer support from Incognia, enhancing security and user experience significantly.
  • Users value the excellent support from Incognia's teams, enhancing security and improving overall onboarding efficiency.
  • Users appreciate the excellent support from Incognia, highlighting quick assistance and effective collaboration for optimal results.
  • Users commend the responsive customer support of Incognia, consistently offering expert guidance and valuable insights.
  • Users value the fast support and insightful dashboard management, effectively analyzing behaviors and enhancing security measures.
Cons
  • Users suggest that Incognia lacks adequate admin control features, limiting their ability to manage operations effectively.
  • Users find the dashboard interface confusing, even with constant availability of usability training resources.
  • Users find the difficult learning curve due to the not-so-intuitive dashboard interface, despite available training resources.
  • Users find the limited documentation in troubleshooting and other areas lacking for effective usage of Incognia.
  • Users find the dashboard interface unintuitive, making navigation challenging even with available training resources.

What Are Recent G2 Reviews of Incognia?

Loqate

GBG Loqate offers a suite of global Address Verification solutions to capture, verify and enrich customer data to eliminate friction, improve data quality, reduce fraud and enhance customer experience. GBG Loqate is trusted by over 20,000 top brands like IBM, Mastercard, ASOS, Oracle and Sephora for global data coverage that delivers local precision, even in hard-to-address markets. GBG Loqate's Address Capture revolutionises address lookup with intuitive suggestions, verified address data, and auto-correction to ensure data accuracy at the point of entry. Address Verify corrects, parses, formats and enriches address data; offering unmatched precision across 250 countries & territories with local address format customisation. Our AI parsing technology significantly improves address match rates & uplift capability. Additionally, GBG Loqate's Phone & Email Validation safeguards data integrity with real-time verification, minimising errors and potential fraudulent activity. GBG Loqate's Store Finder allows your customers to quickly find physical locations anywhere across the globe. GBG Loqate is the world’s leading address verification provider, helping you reach customers the first time, every time.

Average Rating: 4.4/5.0

Total Reviews: 46

How Do G2 Users Rate Loqate?

  • Automation: 7.6/10 (Category avg: 8.8/10)
  • Reporting: 7.2/10 (Category avg: 8.2/10)
  • International Verification: 7.6/10 (Category avg: 8.6/10)
  • Has the product been a good partner in doing business?: 8.8/10 (Category avg: 8.9/10)

Who Is the Company Behind Loqate?

  • Seller: GBG Plc
  • Company Website:
  • Year Founded: 1989
  • HQ Location: Chester, United Kingdom
  • Twitter: @GBGplc
    3,058 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1,354 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 54% Small, 33% Medium

What Do G2 Reviewers Say About Loqate?

AI-generated summary from verified user reviews

Pros
  • Users find the ease of use in Loqate beneficial for quickly filling in details with helpful suggestions.
  • Users value the reliable and accurate address verification from Loqate, enhancing data quality and minimizing delivery errors.
  • Users commend Loqate for its reliable and accurate address verification, significantly reducing shipping errors and enhancing data quality.
  • Users praise the excellent customer support from Loqate, contributing to an overall positive implementation experience.
  • Users value the reliable and accurate address verification of Loqate, enhancing data quality and reducing errors.
Cons
  • Users note the expensive pricing of Loqate, making it less accessible for smaller businesses.
  • Users find the high cost of Loqate challenging, especially for smaller businesses needing budget-friendly options.
  • Users report geographical limitations with Loqate, noting its range is not as extensive as competitors like Google.
  • Users face integration issues with Loqate, finding it less straightforward compared to other platforms like Google.
  • Users find the address range sub par compared to competitors and lack support for taxation is disappointing.

What Are Recent G2 Reviews of Loqate?

What Are G2 Users Discussing About Loqate?

AU10TIX

AU10TIX is a leading global provider of automated identity verification solutions, offering a full-service portfolio with one API endpoint. Originating in airport security and border control, AU10TIX's home-grown technology leverages artificial intelligence and machine learning algorithms to deliver deep fraud detection. Our mature neural networks and advanced detection techniques handle sophisticated threats like deepfake and synthetic identity fraud. Our fully automated verification increases both accuracy and fosters a frictionless user experience to yield the highest pass rates and effectively manage high transaction volumes. Designed for scalability, our automation technology optimizes verification workflows, manages high transaction volumes, and provides actionable insights to enhance decision-making capabilities, meeting diverse customer needs and facilitating seamless business expansion.

Average Rating: 4.4/5.0

Total Reviews: 38

How Do G2 Users Rate AU10TIX?

  • Automation: 6.7/10 (Category avg: 8.8/10)
  • Reporting: 8.1/10 (Category avg: 8.2/10)
  • International Verification: 6.7/10 (Category avg: 8.6/10)
  • Has the product been a good partner in doing business?: 7.8/10 (Category avg: 8.9/10)

Who Is the Company Behind AU10TIX?

  • Seller: AU10TIX
  • Year Founded: 1982
  • HQ Location: Amsterdam
  • Twitter: @AU10TIXLimited
    974 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    204 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Financial Services
  • Company Size: 42% Medium, 42% Small

What Do G2 Reviewers Say About AU10TIX?

AI-generated summary from verified user reviews

Pros
  • Users value the speed and accuracy of AU10TIX, ensuring rapid and reliable identity verification for fraud detection.
  • Users commend the excellent customer support, particularly praising CSM Noam Perez for his extensive knowledge and assistance.
  • Users appreciate the ease of use of AU10TIX, enabling fast and accurate identity verification with minimal hassle.
  • Users value the efficiency of AU10TIX, enhancing customer onboarding and transaction processes seamlessly and securely.
  • Users value AU10TIX for its fast and accurate fraud prevention, ensuring quick and reliable identity verification.
Cons
  • Users report software bugs causing misreads and crashes, affecting performance and user experience during ID verification.
  • Users face issues with inaccuracy in OCR, leading to misreads and inconsistent ID recognition under poor image quality.
  • Users face insufficient information issues due to poor ID reading, confusing release notes, and inadequate product documentation.
  • Users report OCR issues with AU10TIX, noting inconsistent recognition of names and ID numbers, especially with poor image quality.
  • Users experience poor customer support, leading to slow responses and unresolved implementation issues with AU10TIX.

What Are Recent G2 Reviews of AU10TIX?

What Are G2 Users Discussing About AU10TIX?

FullCircl

FullCircl | Start smarter, to grow faster with compliance solved. FullCircl is the first-of-its-kind single orchestration platform that brings regulation fully in step with customer acquisition, to create better business from the start. Our global solutions drive customer acquisition, retention and revenue growth while seamlessly addressing risk and compliance challenges associated with customer onboarding, identity, fraud, financial crime and on-going monitoring. Reduce the cost to acquire and serve, clear the way for positive customer relationships, and accelerate profitable growth. FullCircl identifies millions of actionable insights daily, providing a near real-time record of companies, their officers and shareholders, and the relationships between them. Our customers can verify the identity of corporate entities or individuals and orchestrate many of the time-consuming checks needed to conduct customer due diligence during onboarding, such as KYC, KYB and AML, empowering them to satisfy regulatory requirements and make informed decisions about their customers. By embedding KYB and KYC from the very beginning of the customer engagement, FullCircl has compliance solved. With reach into 160 countries, FullCircl is uniquely positioned at the epicentre of a rapidly growing, multi-billion dollar market. Today it serves 450+ customers, 15,000+ web application users, processes over 300 million checks per month and facilitates the onboarding of 200,000+ customers annually. FullCircl is an nCino company (NASDAQ:NCNO), bringing together people, AI and data to power a new era in regulated business. Visit fullcircl.com to find out more.

Average Rating: 4.5/5.0

Total Reviews: 239

How Do G2 Users Rate FullCircl?

  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 8.9/10)

Who Is the Company Behind FullCircl?

  • Seller: FullCircl
  • Year Founded: 2011
  • HQ Location: London, England
  • Twitter: @WeAreFullCircl
    6,455 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    18 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Business Development Manager, Account Manager
  • Top Industries: Financial Services, Information Technology and Services
  • Company Size: 66% Large, 23% Medium

What Are Recent G2 Reviews of FullCircl?

What Are G2 Users Discussing About FullCircl?

Byteplant Address Validator

Byteplant's postal address verification and cleansing service you can easily verify if an address exists and is deliverable. Whether you want to clean up the addresses in your customer database or verify addresses directly on your website, we have exactly the right solution for you. Our postal Address Verification service allows you to validate and correct postal addresses from 240 countries world-wide. You can test our Address Verification service for free - just register for a free API key.

Average Rating: 4.3/5.0

Total Reviews: 23

How Do G2 Users Rate Byteplant Address Validator?

  • Automation: 8.1/10 (Category avg: 8.8/10)
  • Reporting: 7.7/10 (Category avg: 8.2/10)
  • International Verification: 8.3/10 (Category avg: 8.6/10)
  • Has the product been a good partner in doing business?: 8.5/10 (Category avg: 8.9/10)

Who Is the Company Behind Byteplant Address Validator?

  • Seller: Byteplant
  • Year Founded: 2003
  • HQ Location: Germany
  • Twitter: @Byteplant
    14 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 65% Small, 22% Medium

What Are Recent G2 Reviews of Byteplant Address Validator?

WinPure Clean & Match

WinPure Clean & Match v11 is an extremely powerful data quality, data cleansing, data matching and entity resolution solution designed to help organisations turn inconsistent, duplicate and fragmented data into accurate, trusted and usable information. The platform provides an integrated environment for profiling, cleaning, standardising, matching, deduplicating and consolidating data, helping organisations improve data quality without having to move sensitive information to external cloud-based processing services. WinPure Clean & Match can be used across customer, business, supplier, patient, citizen, product and other operational datasets where identifying duplicate or related records and creating a reliable view of data is critical. ## Data Profiling & Data Quality Insights WinPure enables users to profile their data before beginning cleansing or matching. Data Quality Insights helps users understand the condition of their datasets through metrics covering areas such as completeness, validity, consistency, patterns, character distributions and statistical values. Insights & Recommendations goes further by analysing profiling results and highlighting potential data quality problems and recommended next actions. This helps teams move from simply measuring data quality to identifying what should be addressed. ## Data Cleaning & Standardisation The CLEAN module provides tools for transforming inconsistent source data into standardised, usable information. Users can build reusable cleaning processes to correct, format, standardise and transform data across large datasets. Capabilities include data transformations, text manipulation, standardisation, regular expressions, data parsing, value replacement and other data cleansing operations. Live Transformation Preview allows users to see the effect of transformations before applying them, helping make data cleansing processes easier to understand and control. ## Data Matching & Deduplication WinPure Clean & Match provides advanced fuzzy and exact data matching capabilities for finding duplicate and related records across one or multiple datasets. Matching can be configured around the characteristics of the data rather than relying on a single matching technique. Users can define which fields should participate in matching, configure matching rules and thresholds, and use different comparison approaches where appropriate. This allows organisations to identify matches even when records contain spelling variations, abbreviations, formatting differences, missing information or other inconsistencies that make conventional exact matching ineffective. Typical examples include identifying records such as: **Acme Technologies Ltd** **ACME Technology Limited** or: **Jonathan Smith** **Jon Smith** as potentially representing the same real-world entity despite differences in the underlying data. ## Flexible Matching Algorithms WinPure supports multiple matching approaches so that different types of information can be compared using techniques appropriate to the characteristics of the data. Rather than treating every field identically, matching configurations can be tailored for information such as names, organisations, addresses, email addresses, telephone numbers and identifiers. This provides greater control over the balance between identifying genuine matches and reducing false positives. ## Match Explainability Understanding why records have been identified as matches is an important part of trusting matching results. WinPure Match Explainability provides visibility into matching decisions, helping users understand which information contributed to a match and how records were evaluated. Users can explore match information at record and group level, making it easier to validate results, investigate questionable matches and explain matching decisions to other stakeholders. ## Entity Resolution with Match AI For more complex entity resolution requirements, WinPure also provides Match AI, powered by Senzing technology. Match AI is designed to identify relationships and entities across datasets where information may be incomplete, inconsistent or distributed across multiple records. This provides an additional entity resolution capability alongside WinPure's configurable rules-based matching engine. ## Master Record Selection Once duplicate records have been identified, organisations frequently need to determine which record should represent the entity. WinPure provides configurable Master Record selection capabilities that allow users to automatically identify the preferred record within a duplicate group. Selection can be based on data completeness or configurable business rules, helping organisations establish consistent survivorship processes rather than manually selecting records. ## Golden Records Matching and identifying duplicates is often only the beginning of the data quality process. WinPure helps organisations progress towards consolidated Golden Records by identifying related records, selecting preferred information and maintaining a consistent identity for the resulting entity. Golden Record Identity provides persistent identification that can help organisations maintain entity continuity as datasets are refreshed or additional records are introduced. This is particularly valuable for master data management, customer data consolidation, migration projects and environments where the same entities appear across multiple operational systems. ## Secure Local Processing WinPure Clean & Match is designed for organisations that want greater control over where their data is processed. Data cleansing, profiling and matching can be performed locally rather than requiring organisations to upload entire datasets to an external SaaS platform. This makes WinPure particularly suitable for organisations handling sensitive, confidential or regulated information, including public sector, healthcare, financial services and enterprise environments. ## Designed for Business and Technical Users WinPure combines sophisticated data quality and matching capabilities with a visual interface. Users can configure profiling, cleansing and matching workflows without needing to develop an entire data quality solution from code. At the same time, configurable matching rules, algorithms, thresholds and data transformations provide the flexibility required for more complex data quality projects. ## Common Use Cases Organisations use WinPure Clean & Match for a wide range of data quality projects, including: * Customer and contact deduplication * CRM data cleansing * Database consolidation * Data migration * Master data management * Entity resolution * Duplicate detection * Customer 360 initiatives * Single customer or citizen views * Golden record creation * Supplier and business matching * Data standardisation * Data profiling and quality assessment * Preparing data for analytics and AI * Improving data before CRM, ERP or other system migrations ## Building Trusted Data Poor-quality data can affect reporting, analytics, CRM adoption, operational processes, regulatory activities and AI initiatives. WinPure Clean & Match brings profiling, cleansing, matching, entity resolution and Golden Record capabilities together to help organisations understand their data, improve its quality and identify the real-world entities represented within it. The result is cleaner, more consistent and more trustworthy data that organisations can use with greater confidence.

Average Rating: 4.7/5.0

Total Reviews: 74

How Do G2 Users Rate WinPure Clean & Match?

  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 8.9/10)

Who Is the Company Behind WinPure Clean & Match?

  • Seller: WinPure
  • Year Founded: 2004
  • HQ Location: Theale, Berkshire
  • Twitter: @WinPure
    2,209 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    10 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Marketing and Advertising, Health, Wellness and Fitness
  • Company Size: 44% Small, 35% Medium

What Do G2 Reviewers Say About WinPure Clean & Match?

AI-generated summary from verified user reviews

Pros
  • Users commend WinPure's world-class customer support, which provided effective guidance and hands-on training throughout the process.
  • Users rave about the exceptional data quality provided by WinPure Clean & Match, making CRM migrations seamless and accurate.
  • Users value the duplicate management features of WinPure Clean & Match for their speed and accuracy in data handling.
  • Users appreciate the ease of use of WinPure Clean & Match, quickly achieving results without extensive training.
  • Users value the easy access of WinPure, enabling quick and intuitive use without extensive training required.

What Are Recent G2 Reviews of WinPure Clean & Match?

What Are G2 Users Discussing About WinPure Clean & Match?

Fetchify

We are a pioneer in SaaS address lookup and data validation solutions. We process millions of transactions each day for thousands of clients ranging from small e-commerce startups to large household brands.

Average Rating: 3.9/5.0

Total Reviews: 21

How Do G2 Users Rate Fetchify?

  • Automation: 7.2/10 (Category avg: 8.8/10)
  • Reporting: 7.2/10 (Category avg: 8.2/10)
  • International Verification: 7.5/10 (Category avg: 8.6/10)
  • Has the product been a good partner in doing business?: 2.8/10 (Category avg: 8.9/10)

Who Is the Company Behind Fetchify?

  • Seller: Fetchify
  • Year Founded: 2009
  • HQ Location: Maidenhead, UK
  • LinkedIn® Page: www.linkedin.com
    9 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 64% Small, 32% Medium

What Are Recent G2 Reviews of Fetchify?

Postcodes4u

Postcodes4U provides a UK Address Lookup Service at a very competitive price.

Average Rating: 4.2/5.0

Total Reviews: 12

How Do G2 Users Rate Postcodes4u?

  • Automation: 7.5/10 (Category avg: 8.8/10)
  • Reporting: 7.9/10 (Category avg: 8.2/10)
  • International Verification: 8.3/10 (Category avg: 8.6/10)
  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.9/10)

Who Is the Company Behind Postcodes4u?

  • Seller: Postcodes4u
  • Year Founded: 1984
  • HQ Location: Colwyn Bay, GB
  • Twitter: @Postcodes4U
    217 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 42% Medium, 42% Small

What Are Recent G2 Reviews of Postcodes4u?

What Are G2 Users Discussing About Postcodes4u?

ApiCheck

With Apicheck's Postcode API, users can automatically fill in missing information and ensure that the address they have entered is accurate and up-to-date. This service is particularly useful for businesses that frequently handle customer orders, as it can help to streamline their address verification process, minimize errors, and ultimately improve their overall customer experience.

Average Rating: 4.3/5.0

Total Reviews: 12

How Do G2 Users Rate ApiCheck?

  • Automation: 8.3/10 (Category avg: 8.8/10)
  • Reporting: 8.3/10 (Category avg: 8.2/10)
  • International Verification: 8.7/10 (Category avg: 8.6/10)
  • Has the product been a good partner in doing business?: 8.9/10 (Category avg: 8.9/10)

Who Is the Company Behind ApiCheck?

Who Uses This Product?

  • Company Size: 50% Medium, 42% Small

What Are Recent G2 Reviews of ApiCheck?

Stannp.com

Send personalized postcards, letters, and self-mailers to customers globally with production centres in US, Canada and Europe. Trigger automatically by your CRM, by customer behavior, or sent as one-off campaigns. We make direct mail as easy to manage as email and equally powerful. Replicate your email strategies with Direct Mail like: * Recovering abandoned carts with personalized postcards * Winning back churned customers with targeted offers * Triggering transactional notifications and renewal reminders automatically * Running seasonal campaigns to specific customer segments * Complementing email and paid ads with a physical touchpoint that cuts through Built To Fit Your Existing Stack: Stannp.com integrates with HubSpot, Klaviyo, Zapier, and Make, so you can trigger direct mail from the tools you already use, without rebuilding your workflows. For teams who want full control, a powerful REST API enables custom automations and high-volume programmatic sending. Trusted, Secure and Compliant: Stannp.com is ISO 27001 certified, HIPAA compliant, and ICO registered, making it a reliable choice for businesses handling sensitive customer data across regulated industries including healthcare and financial services. US mailings are processed through a USPS CASS-certified platform; UK mailings as a Royal Mail approved provider. Both ensure address accuracy and maximum deliverability. Simple Enough For Marketers Powerful Enough For Developers: Whether you're uploading a list and sending your first campaign in minutes, or building automated multi-step journeys through the API, Stannp.com scales to how your team works. Live mail tracking, campaign reporting, and ROI measurement are built in from day one. Trusted by over 85,000 businesses across the US, UK, and Canada. Over 1 billion items sent since 2014.

Average Rating: 4.8/5.0

Total Reviews: 43

How Do G2 Users Rate Stannp.com?

  • Automation: 10.0/10 (Category avg: 8.8/10)
  • Reporting: 10.0/10 (Category avg: 8.2/10)
  • Has the product been a good partner in doing business?: 8.7/10 (Category avg: 8.9/10)

Who Is the Company Behind Stannp.com?

  • Seller: Stannp.com
  • Company Website:
  • Year Founded: 2014
  • HQ Location: Barnstaple, GB
  • LinkedIn® Page: www.linkedin.com
    52 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 67% Small, 26% Medium

What Are Recent G2 Reviews of Stannp.com?

What Are G2 Users Discussing About Stannp.com?

GeoPostcodes

GeoPostcodes provides the most comprehensive global location database. We empower Fortune 500 companies such as Amazon and DB Schenker to run address validation, distance calculation, and map visualization at a global scale, supporting critical operations across logistics, e-commerce, advertising, market research, and marketplaces worldwide. Our datasets form a single source of truth covering 247 countries, including hard-to-source geographies such as China, Japan, and Brazil. They include ZIP codes, addresses, boundaries, and population data, all standardized, up-to-date, and curated from 1,500+ authoritative sources. Backed by 15 years of experience, we provide expert consulting to ensure seamless integration into your systems. Our self-hosted solution gives you complete control over the data, ensuring security, compliance, and performance at a fixed cost. One vendor. Every country. Trusted location data, worldwide.

Average Rating: 4.4/5.0

Total Reviews: 8

How Do G2 Users Rate GeoPostcodes?

  • Automation: 8.0/10 (Category avg: 8.8/10)
  • International Verification: 8.3/10 (Category avg: 8.6/10)
  • Has the product been a good partner in doing business?: 9.0/10 (Category avg: 8.9/10)

Who Is the Company Behind GeoPostcodes?

Who Uses This Product?

  • Company Size: 75% Small, 13% Medium

What Do G2 Reviewers Say About GeoPostcodes?

AI-generated summary from verified user reviews

Pros
  • Users value the data accuracy of GeoPostcodes, ensuring reliable billing processes through precise post codes.
Cons
  • Users find GeoPostcodes to be very expensive, potentially pricing out smaller or startup businesses.

What Are Recent G2 Reviews of GeoPostcodes?

LexisNexis Keep Contact

MemberPoint cleans and enhances your membership files with information from our vast public records repository which uses our proprietary LexID linking technology and HPCC computing platform.

Average Rating: 4.4/5.0

Total Reviews: 7

How Do G2 Users Rate LexisNexis Keep Contact?

  • Automation: 8.7/10 (Category avg: 8.8/10)
  • Reporting: 9.0/10 (Category avg: 8.2/10)
  • International Verification: 8.3/10 (Category avg: 8.6/10)
  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 8.9/10)

Who Is the Company Behind LexisNexis Keep Contact?

Who Uses This Product?

  • Company Size: 43% Medium, 29% Large

What Are Recent G2 Reviews of LexisNexis Keep Contact?

Placekey API

Placekey is a free and open universal standard identifier for any physical place so that the data pertaining to those places can be shared across organizations easily. Placekey creates a common industry standard for identifying any physical place. Eventually, there will be a Placekey for every place in the world, even those without a postal address (school district, county, neighborhood, etc.). However, Placekey goes beyond just an identifier. It’s a movement of organizations and individuals that prize access to data. Placekey members want geospatial data that is easily joined and combined…because real answers come from combining data from many different sources. It is a philosophy that data should be easy to access and data should not be hoarded. These members believe that data, when combined, can do massive good. How much does it cost to use the Placekey API? Absolutely nothing. Whether you generate a Placekey via this website or use the Placekey API, it will always be free. *Should a business ping the Placekey API with a massive number of requests—in the millions per month, for example—we may invite you to help us cover those computing costs. Who is using Placekey? Over 500 organizations have signed on to support Placekey including Esri, SafeGraph, Carto, and Landgrid. What does a Placekey look like? Here is an example of a complete Placekey: 223-227@5vg-7gq-tvz The "What Part" (in front of the "@") consists of two unique character sequences. The first three (or more) characters refer to Address Encoding, creating a unique identifier for a given address. An address at “555 Main Street Suite 105” will have different Address Encoding than “555 Main Street Suite 106.” The second set of three (or more) characters in the What Part refers to POI Encoding. If a specific place is already included in the Placekey reference datasets, these characters will be present. The benefit of POI Encoding is that it can point to a specific Point-of-Interest that may have existed at a certain address at a given point in time. While Address Encoding allows Placekey to hone in on a specific address, there’s always the chance that either: 1. Multiple businesses can exist at the same address at the same time (i.e. a Starbucks coffee shop within a Target retail store); or 2. Multiple businesses may have occupied that space over time (i.e. what may have been a Chipotle restaurant a year ago is now a McDonald’s restaurant). The "Where Part" (after the "@"), on the other hand, is made up of three unique character sequences, built upon Uber’s open source H3 grid system. This information in the Where Part is based on the center point of that place. In other words, we take the exact latitude and longitude of a specific place and then use a conversion function to determine which hexagon in the physical world contains the centroid of that place. The hexagon is currently fixed at H3’s Resolution 10 (about 15,000 square meters). The Where Part of the Placekey is, therefore, the full encoding of that hexagon.

Average Rating: 4.9/5.0

Total Reviews: 6

How Do G2 Users Rate Placekey API?

  • Automation: 10.0/10 (Category avg: 8.8/10)
  • Reporting: 10.0/10 (Category avg: 8.2/10)
  • International Verification: 10.0/10 (Category avg: 8.6/10)
  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.9/10)

Who Is the Company Behind Placekey API?

  • Seller: Placekey
  • Year Founded: 2020
  • HQ Location: N/A
  • Twitter: @PlaceKey
    3 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 67% Medium, 33% Small

What Are Recent G2 Reviews of Placekey API?

What Are G2 Users Discussing About Placekey API?

AccuMail Verify

Secure the benefits of real-time postal address verification across all business-critical systems, databases and applications. Available as REST or SOAP services, SmartSoftDQ’s AccuMail address verification API deploys rapidly and prevents inaccurate or incomplete data from entering any system. Ensure each address is parsed, analyzed, verified, formatted with USPS® CASS certified data, standardized with ZIP+4® Codes, updated with DPV™, SuiteLink™, or LACSLink® information, enhanced with carrier routes and LOT codes, and inspected for duplicates before it enters your database. Simple Integration – The AccuMail Verify address verification API is designed for rapid deployment, in both REST and SOAP environments, so you’ll be up and running in as little as an hour! Certified by the USPS - CASS Certified for accuracy, the AccuMail Verify API instantly validates addresses against the very latest postal database from the USPS. Total Address Accuracy - addresses are verified, standardized, and any missing elements such as ZIP+4 or County Code are added to each record. Built-in RDI - the Residential Delivery Indicator feature lets you know whether each address is a residential or business address - which can lower your shipping costs, as well as give you greater insight into the addresses in your database for marketing purposes. Full Customization – AccuMail Verify API gives you control over the look and feel of your web forms for seamless integration within your website or other applications. Labels, buttons, input fields and tabs can all be customized with different sizes, colors, fonts and placements.

Average Rating: 4.5/5.0

Total Reviews: 5

How Do G2 Users Rate AccuMail Verify?

  • Automation: 8.3/10 (Category avg: 8.8/10)
  • Reporting: 7.2/10 (Category avg: 8.2/10)
  • International Verification: 7.5/10 (Category avg: 8.6/10)
  • Has the product been a good partner in doing business?: 6.7/10 (Category avg: 8.9/10)

Who Is the Company Behind AccuMail Verify?

  • Seller: SmartSoft
  • Year Founded: 1968
  • HQ Location: Westlake Village, US
  • LinkedIn® Page: www.linkedin.com
    28 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 60% Small, 40% Medium

What Are Recent G2 Reviews of AccuMail Verify?

Lauren Worth
LW
Researched and written by Lauren Worth
Updated March 10, 2026